{"id":2655,"date":"2016-06-06T10:25:10","date_gmt":"2016-06-06T16:25:10","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=2655"},"modified":"2016-06-06T10:25:10","modified_gmt":"2016-06-06T16:25:10","slug":"ftb-06-06-2016-strong-to-severe-storms-pose-a-low-to-moderate-flood-threat","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=2655","title":{"rendered":"FTB 06-06-2016: Strong-to-Severe Storms Pose a Low-to-Moderate Flood Threat"},"content":{"rendered":"

Issue Date: 6\/6\/2016
\nIssue Time: 10:24 AM<\/p>\n

A MODERATE FLOOD THREAT IS FORECAST FOR PORTIONS OF THE FRONT RANGE, URBAN CORRIDOR AND PALMER RIDGE REGIONS.<\/em><\/p>\n

A LOW FLOOD THREAT IS FORECAST FOR PORTIONS OF THE URBAN CORRIDOR, NORTHEAST PLAINS, PALMER RIDGE, FRONT RANGE, NORTHERN MOUNTAINS, CENTRAL MOUNTAINS, SOUTHEAST MOUNTAINS, RATON RIDGE, AND SOUTHEAST PLAINS.<\/em><\/p>\n

A weak upper ridge will be in place over western Colorado through this period, placing weak, northwest flow aloft over the mountains and eastern Colorado. Within this setup, the upper-levels will be weakly diffluent, promoting upward motion through this afternoon\/evening. At the low- and mid-levels, easterly upslope flow will reinforce\/enhance moisture from the surface to approximately 700 millibars. Precipitable water<\/span> in the 12Z Denver sounding (0.70 inches) was near the 90th percentile for the date. As you can see below, Pueblo IPW (pink line) was nearing 1 inch, and the general upward trend will continue for Boulder (blue line), and Schriever AFB (red line).<\/p>\n

As the day wears on and the temperature rises, instability will rise, as well. Due to weak upper-level flow, wind shear<\/span> will not be great this afternoon, but will be sufficient for clusters of strong-to-severe storms along\/south of I-70 and along\/east of the Continental Divide<\/span>. These storms will be capable of small hail, gusty winds, and brief moderate-to-heavy rainfall. With this setup in place, there is some concern of slow-moving\/training<\/span> thunderstorms, mainly over the Front Range, Urban Corridor and Palmer Ridge. With this in mind, a moderate flood threat is warranted where local enhancement of rainfall plus impervious surfaces provide additional concerns. For areas north of I-70 and along\/east of the Continental Divide<\/span>, scattered<\/span> showers and thunderstorms are expected, but will not have the same gusto as those to the south. The main threats from these storms will be brief moderate-to-heavy rainfall, small hail, and gusty winds.<\/p>\n

\"IPW_20160606\"<\/a><\/p>\n

Moving west of the Continental Divide<\/span>, isolated<\/span>-to-scattered<\/span> thunderstorms are expected over the higher terrain as daytime heating works on enough moisture still clinging to the area. A few will drift over the valleys. The primary threats from these storms will be gusty winds and small hail, with brief light-to-moderate rainfall. Otherwise, expect temperatures to remain 10-15 degrees above seasonal average.<\/p>\n

For more details on timing and rain rates, please see the zone-specific forecast discussions below.<\/p>\n

Today’s Flood Threat Map<\/strong><\/h3>\n

For more information on today’s flood threat, see the map below (hover over threat areas for more details). For Zone-Specific forecasts, jump below the map.<\/p>\n